<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>浮动注意点</title>
    <style>
        .damao {
            float: left;
            width: 100px;
            height: 100px;
            background-color: pink;
        }
        .ermao {
            /* float: left; */
            width: 200px;
            height: 200px;
            background-color: skyblue;
        }

        .sanmao {
            float: left;
            width: 300px;
            height: 300px;
            background-color: red;
        }
    </style>
</head>
<body>
    <div class="damao">大猫</div>
    <div class="ermao">二毛</div>
    <div class="sanmao">三毛</div>
</body>
</html>